离心选矿机操作规程您了解吗？

离心选矿机：“
一、离心选矿机必须由经过安全技术培训，并经考试合格的操作工操作。  二、离心机处理锡矿泥的生产技术指标。 
作业 生产 能力 给矿 浓度（%） 给矿粒度+0.074mm 产率  （%）  作业 回收率（%） 富矿比 （倍） 粒级回收率  ＋37u 38－19u 19－ 10u －10u 粗 选 30 22－ 24 ＜2% 22.45 82  3.6 69.7 91  89  41  精 选 20 18－ 20 ＜2% 40.52 84  2  77  89  67  51    三、开车前准备工作：  1、检查转鼓内有无沉渣和杂物，转鼓是否牢固地固定在底盘上。 2、检查给矿渣给矿鸭嘴是否畅通。  3.检查给矿及排精矿控制机构电磁铁是否良好。 4、检查高压冲洗水鸭嘴是否畅通。 5检查电动机地脚螺丝是否松动。

四、开车：  1、上述各项检查一切正常，并与上下工序联系后按下列顺序开车：开动电动机，运转正常→打开冲洗水→开始给矿浆。  2、操作过程中注意给矿体积的大小。给矿体积过大，矿浆的轴向流速加快，重矿粒容易损失在尾矿中，此时精矿和尾矿品位均增高，但精矿产率减低，回收率低。给矿体积过小，矿浆流速小，矿层不够松散，不能起到好的分选作用。  适宜的给矿体积与作业及原矿性质有关。当给矿中-10微米含量为20%时，给矿体积为80升/分、分。当-10微米含量为30%时的给矿体积为65升/分、分左右。  3、操作过程中应控制给矿浓度。一般粗选为22～25%，精选为18～20%。  4、给矿时间一般3分钟，分矿冲洗时间为30秒。选矿周期为3分30秒。  5、转鼓转数：转鼓转数是转鼓产生离心力大小的源泉，对于一定大小的离心机转数越大，产生的离心力越大。提高转数，尾矿品位降低，回收率提高。精矿品位降低。
6、转速和选矿周期一经确定下来，一般不调节，操作时主要严格控制给矿浓度，给矿体积以及经常检查和维护执行机构和控制机构能否正常而准确的工作。 五、停车：  1、停车顺序：先停给矿→再停冲洗水→再停离心选矿机→再拉下电闸刀。  2、打扫离心选矿机及场地卫生。 3、填写设备运转记录。  4、无通知停电或设备故障、先关离心选矿机电机开关，再拉下电闸刀，然后冲洗干净离心选矿机转鼓内的矿砂。

Centrifugal concentrator: "
A centrifugal concentrator must be made through safety training and pass the examination operatives operate. Second, the processing of tin mud centrifuge production technology indicators.
Job production capacity to the ore concentration (%) feed size + 0.074mm yield (%) jobs recovery (%) Bonanza ratio (times) grain size recovery + 37u 38-19u 19- 10u -10u roughing 3022-24 <2% 22.45 69.7 3.6 82 918 941 Featured 2018-20 <2% 40.52 84,277,896,751 three, before driving the preparatory work: 1, check whether the sediment and debris in the drum, the drum is solid secured to the chassis. 2. Check to slag ore duckbill is smooth. 3. Check for ore and concentrate discharge solenoid control mechanism is good. 4, check whether the high-pressure wash water beak open. 5 Check motor anchor bolts are loose.

Fourth, the car: 1, above all the normal checks and steps down after contact with the car in the following order: start the motor, in normal operation → Open → beginning to pulp wash water. 2, during the operation pay attention to the size of the ore volume. Ore volume is too large, the axial flow speed pulp, heavy mineral particles easily lost in the tailings, concentrate and tailings grade point average increased, but reduce the rate of fine mineral recovery rate is low. Ore volume is too small, small slurry flow rate, not enough loose seam, you can not play a good role in sorting. Suitable for mine operations and the volume and nature of the ore. When the -10 micron ore content of 20%, the volume of 80 liters to mine / min, min. When the content of 30% -10 micron to mine when the volume of 65 l / min or so. 3, during the operation should be controlled to the ore concentration. Typically 22 to 25 percent crude chosen, selected from 18 to 20 percent. 4, time is usually 3 minutes to the mine, the ore processing time is 30 seconds. Beneficiation period of 3 minutes and 30 seconds. 5, number of revolutions of the drum: drum revolution speed is the source of the size of the drum to produce a centrifugal force, a certain number of revolutions of the centrifuge for the larger size, the greater the centrifugal force. Increase the number of revolutions, tailings grade reduced recovery rate. Lower grade ore.
6, speed and beneficiation cycle once finalized, generally do not adjust, strict control of the operation to the main ore concentration, ore volume and frequent inspection and maintenance of the actuator and control mechanisms are working correctly and accurate work. V. Parking: 1 Parking order: first stop to mine and then stop flushing water → → → centrifugal concentrator and then stop and then pull down the gates knife. 2, cleaning centrifugal concentrator and venue of Health. 3. Fill in equipment operation records. 4, no notice outage or equipment failure, first off centrifugal concentrator machine motor switch, then pull down the gates knife, then rinse clean ore concentrator centrifugal drum inside.